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Most houses around Australia have a recycling bin, but do we all know what should or shouldn't go in and why Leah is a junior scientist with the Double Helix Club and she points out all the things that you can recycle at home.

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Geographically the world can be divided into five oceans, the Pacific, Atlantic, Indian, Southern and Arctic. These oceans cover around 70 percent of the earth and although we can't measure it exactly, it is estimated to have a volume of 1370 million cubic kilometres.